When we moved in to our house back in September, there was a birds' nest above our front porch. We never saw any birds there, but knew they had been there recently because of the wonderful mess they made on the porch. A few weeks ago, since there had been no traces of birds for 6 months, Brandon finally sprayed down the nest and cleaned off the front porch. Within the week, the nest was back!
It wouldn't be so bad to have the nest, if they didn't leave the mess on the porch, but because of the mess, it's really annoying! Our neighbors across the street have a nest at their front porch also and they say they spray it down every night and by the next day it's been built back up! I guess we have some stubborn birds in our neighborhood! ;)